#mCRC & #EGFR tx:
✅Anti-EGFR useful in RAS/RAF WT; debate re: timing vs anti-VEGF
✅Pt centered discussion including SEs 🗝️
✅Emerging data: EGFR re-tx, using ctDNA to guide
@shafiarahman_ 's approach: pt eligible for EGFR-directed tx in #metastatic#CRC
🔹RAS/RAF WT- more important than side
🔹Bev or pan 1L? Trend toward pan, but is 🗝️actually that pt gets anti-EGFR in tx, 🚫necessarily 1L?
Take🏠msgs:
✅ Pembro ONLY approved adj IO in RCC
✅ 3 recent trials w IO failure: nivo/ipi, atezo & periop nivo
✅ Must balance risks vs benefits- shared decision-making 🗝️
🎥 TBT in a video
High risk #RCC, pembro= DFS advantage, but w cost- Grade 3 AEs= 32%. High risk #RCC defined by:
🔹Stage II w sarcomatoid features
🔹Stage III+
🔹Regional LN+/M1 disease
Take🏠msg:
✅ctDNA= both tx decision making & MRD in #NSCLC
✅Identify actionable muts in dz where a bx not possible
✅Pros (serum test) & cons ($, inability to multiplex with IHC- aka PD-L1 status)
🎥 TBT in a video
ctDNA + tissue-based NGS= highest sensitivity (do NOT miss actionable mutations in #NSCLC).
ctDNA can be used to:
🔹Identify actionable mutations
🔹Track disease status (MRD)
🔹Adapt targeted therapies based on 2dary muts
✅CDK4/6i +endocrine tx= 1L HR+ mBC
✅Ribo =⬆️OS; select based on shared decision
✅After prog on CDK4/6i, eval muts (ESR1, PIK3CA)➡️SERD vs PIK3CAi
✅Benefit in adj- monarchE
IO has fundamentally changed 🫁 cancer tx.
Choosing the right strategy in squamous cell lung ca largely based on PD-L1 status; we’re hoping for more, & better, biomarkers in the future.
T-DXd is an antibody drug conjugate (ADC), tethering deruxtecan payload to HER2 ab. Improvements over chemo in mOS and PFS, but watch carefully for ILD and all toxicities!
📷 #TBT in an image: we’ve summarized some key pts re: EGFRm #NSCLC & emerging data- hope to see more ADCs as 3L options for pts with EGFRm disease in the future!
Take🏠messages :
PIK3CA mutations in ER+ #mBC
✅PIK3CA mut are common- 20-30% of all #BreastCancer & 40%+ of ER+ #mBC
✅PIK3CAm are present in founder clones!
Take🏠messages (Part 2):
✅Alpelisib is a PIK3CA inhib= 5.3 mo ⬆️in PFS
✅Side effect mgmt is key- esp. 💩diarrhea,
🍦hyperglycemia
✅Personalized medicine needs personalized side effect mgmt
We summed it up in a graphic- check out management of unresectable stage III #NSCLC, with updated data from PACIFIC, + exciting data from ongoing COAST trial (evaluating anti-CD73 w ICI; anti-NKG2A w ICI).
How do you choose IO vs PARPi in #TNBC w #BRCA mutation? Check out the summary and algorithm below!
Important to know there are more 2L options as well, including sacituzumab-gov & other ADCs. New trials evaluating IO+ PARPi–stay tuned!
Take🏠messages for germline #BRCAm & 2L tx in #BreastCancer
✅BRCAm fairly common - 10-20% of #TNBC
✅PARPi approved in met, BRCAm dz
✅Fast responses, with ORR > chemo
Take🏠messages:
We discussed #EGFR mutations in #LungCancer
✅Not all EGFR mutations are the same!
✅Osimertinib=tx for most activating EGFR mutations
✅…but exon20insmut more resistant to TKIs
✅Amivantamab, mobocertinib= 2L strategies
